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What's the difference between subprocess Popen and call (how can I use them)?
I want to call an external program from Python. I have used both Popen() and call() to do that.
2 Answers
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Why start a shell command with a backslash?
Why is the command starting with \ ?
This is the site where I saw it.
2 Answers
2
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Consequences of using graft in Mercurial
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When you update to D and graft F::J, Mercurial runs a number of merges. It will start with this merge:
M = three_way_merge(local=D, other=F, base=E)
If we write +d for the delta between the states C and D, then we start with:
+d +...
str.startswith with a list of strings to test for
I'm trying to avoid using so many if statements and comparisons and simply use a list, but not sure how to use it with str.startswith :
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error upon assigning Layout: BoxLayout can't be shared
...d to the ContentPane so it will look like it's 'shared' between the JFrame and the ContentPane
Do this instead:
JFrame frame = new JFrame();
frame.setLayout(new BoxLayout(frame.getContentPane(), BoxLayout.Y_AXIS));
frame.add(new JLabel("Hello World!"));
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What is the difference between Class.this and this in Java
...ence a nonstatic InnerClass will always have a reference of its OuterClass and all the
fields and methods of OuterClass is available to the InnerClass.
public static void main(String[] args) {
OuterClass outer_instance = new OuterClass();
OuterClass.InnerClass inner_instance1 = out...
Saving images in Python at a very high quality
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If you are using matplotlib and trying to get good figures in a latex document, save as an eps. Specifically, try something like this after running the commands to plot the image:
plt.savefig('destination_path.eps', format='eps')
I have found that ep...
Reformat XML in Visual Studio 2010
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... and if it's from a file, the file extension should be relevant to the format... like .xml or .html
– BeardinaSuit
Nov 15 '11 at 18:25
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jQuery - multiple $(document).ready …?
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All will get executed and On first Called first run basis!!
<div id="target"></div>
<script>
$(document).ready(function(){
jQuery('#target').append('target edit 1<br>');
});
$(document).ready(function(){
jQu...
Simulate airplane mode in iPhone Simulator
... emulate the iPhone; it's just an environment for Mac apps to link against and look like an iPhone. So you need a way, at the system layer, to restrict an app from talking to the network. Unix doesn't provide that; it would almost certainly need kernel support to get it. You could do it more easily ...